Quite Often
Artist's commentary
Hang in There, Kogasa-san 3867
So, if that system's IC s broken, you're stuck, since there's no way to obtain them as an individual. Or you could buy a junker of the same model from somewhere and replace the IC, but that'd be the only way.
I wrote that "several of the wires have broken," but that's because I got carried away at the start and cut several of them, so it was a total self-own. :-)